. Renewal of Life by Transmission. The most notable distinction between living and inanimate things is that the former maintain themselves by renewal. A stone when struck resists. If its resistance is greater than the force of the blow struck, it remains outwardly unchanged. Otherwise, it is shattered into smaller bits. Never does the stone attempt to react in such a way that it may maintain itself against the blow, much less so as to render the blow a contributing factor to its own continued action. While the living thing may easily be crushed by superior force, it none the less tries to turn the energies which act upon it into means of its own further existence. If it cannot do so, it does not just split into smaller pieces (at least in the higher forms of life), but loses its identity as a living thing. As long as it endures, it struggles to use surrounding energies in its own behalf. It uses light, air, moisture, and the material of soil. To say that it uses them is to say that it turns them into means of its own conservation. As long as it is growing, the energy it expends in thus turning the environment to account is more than compensated for by the return it gets: it grows. Understanding the word "control" in this sense, it may be said that a living being is one that subjugates and controls for its own continued activity the energies that would otherwise use it up. Life is a self-renewing process through action upon the environment.

The United States' failure to educate its students leaves them unprepared to compete and threatens the country's ability to thrive in a global economy and maintain its leadership role. This report notes that while the United States invests more in K-12 public education than many other developed countries, its students are ill prepared to compete with their global peers. According to the results of the 2009 Program for International Student Assessment (PISA), an international assessment that measures the performance of 15-year-olds in reading, mathematics, and science every three years, U.S. students rank fourteenth in reading, twenty-fifth in math, and seventeenth in science compared to students in other industrialized countries. The lack of preparedness poses threats on five national security fronts: economic growth and competitiveness, physical safety, intellectual property, U.S. global awareness, and U.S. unity and cohesion, says the report. Too many young people are not employable in an increasingly high-skilled and global economy, and too many are not qualified to join the military because they are physically unfit, have criminal records, or have an inadequate level of education. The report proposes three overarching policy recommendations: implement educational expectations and assessments in subjects vital to protecting national security; make structural changes to provide students with good choices; and, launch a "national security readiness audit" to hold schools and policymakers accountable for results and to raise public awareness.

This book summarises and discusses key findings from the learning sciences, shedding light on the cognitive and social processes that can be used to redesign classrooms to make them highly effective learning environments.

First Published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.